440 citations · 9.4k across the 157 of their papers we have counts for
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Characterizing the Cosmological Gravitational Wave Background Anisotropies and non-Gaussianity
N. Bartolo, D. Bertacca, S. Matarrese +4
A future detection of the Stochastic Gravitational Wave Background (SGWB) with GW experiments is expected to open a new window on early universe cosmology and on the astrophysics o…
Gravitational waves and geometrical optics in scalar-tensor theories
Alice Garoffolo, Gianmassimo Tasinato, Carmelita Carbone +2
The detection of gravitational waves (GWs) propagating through cosmic structures can provide invaluable information on the geometry and content of our Universe, as well as on the f…
Measuring the net circular polarization of the stochastic gravitational wave background with interferometers
Valerie Domcke, Juan Garcia-Bellido, Marco Peloso +4
Parity violating interactions in the early Universe can source a stochastic gravitational wave background (SGWB) with a net circular polarization. In this paper, we study possible…
Probing a stationary non-Gaussian background of stochastic gravitational waves with pulsar timing arrays
Cari Powell, Gianmassimo Tasinato
We introduce the concept of stationary graviton non-Gaussianity (nG), an observable that can be probed in terms of 3-point correlation functions of a stochastic gravitational wave…
Gravitational Wave Anisotropies from Primordial Black Holes
N. Bartolo, D. Bertacca, V. De Luca +6
An observable stochastic background of gravitational waves is generated whenever primordial black holes are created in the early universe thanks to a small-scale enhancement of the…
High angular resolution gravitational wave astronomy
John Baker, Tessa Baker, Carmelita Carbone +19
Since the very beginning of astronomy the location of objects on the sky has been a fundamental observational quantity that has been taken for granted. While precise two dimensiona…
Anisotropies and non-Gaussianity of the Cosmological Gravitational Wave Background
N. Bartolo, D. Bertacca, S. Matarrese +4
The Stochastic Gravitational Wave Background (SGWB) is expected to be a key observable for Gravitational Wave (GW) interferometry. Its detection will open a new window on early uni…
Testing modified gravity at cosmological distances with LISA standard sirens
E. Belgacem, G. Calcagni, M. Crisostomi +18
Modifications of General Relativity leave their imprint both on the cosmic expansion history through a non-trivial dark energy equation of state, and on the evolution of cosmologic…
Quantum gravity and gravitational-wave astronomy
Gianluca Calcagni, Sachiko Kuroyanagi, Sylvain Marsat +3
We investigate possible signatures of quantum gravity which could be tested with current and future gravitational-wave (GW) observations. In particular, we analyze how quantum grav…
Reconstructing the spectral shape of a stochastic gravitational wave background with LISA
Chiara Caprini, Daniel G. Figueroa, Raphael Flauger +5
We present a set of tools to assess the capabilities of LISA to detect and reconstruct the spectral shape and amplitude of a stochastic gravitational wave background (SGWB). We fir…
Searching for Fossil Fields in the Gravity Sector
Emanuela Dimastrogiovanni, Matteo Fasiello, Gianmassimo Tasinato
Evidence for the presence of extra fields during inflation may be found in the anisotropies of the scalar and tensor spectra across a vast range of scales. Indeed, beyond the singl…
Gravitational-wave luminosity distance in quantum gravity
Gianluca Calcagni, Sachiko Kuroyanagi, Sylvain Marsat +3
Dimensional flow, the scale dependence of the dimensionality of spacetime, is a feature shared by many theories of quantum gravity (QG). We present the first study of the consequen…
Electromagnetic probes of primordial black holes as dark matter
Y. Ali-Haimoud, S. Clesse, J. Garcia-Bellido +91
The LIGO discoveries have rekindled suggestions that primordial black holes (BHs) may constitute part to all of the dark matter (DM) in the Universe. Such suggestions came from 1)…
On long range axion hairs for black holes
Francesco Filippini, Gianmassimo Tasinato
The physics of black holes can suggest new ways to test the existence of axions. Much work has been done so far to analyse the phenomenon of superradiance associated with axions in…
Squeezed tensor non-Gaussianity in non-attractor inflation
Ogan Ozsoy, Maria Mylova, Susha Parameswaran +3
We investigate primordial tensor non-Gaussianity in single field inflation, during a phase of non-attractor evolution when the spectrum of primordial tensor modes can be enhanced t…